Coal mining brought diversity to Boulder County

In 1920, 12,799 men were employed by the coal mining operations (303)444.1803 in Colorado. In that year, a poll was taken in an effort to determine the nationalities of the miners. By this point, Latinos had become *$10 off Brazilian the second Waxing largest ethnicity employed by the mines. The following are the results of the Colorado mining survey of 1920: